Point type photoelectric smoke detector convenient to install

Abstract

The utility model relates to the technical field of fire detection alarms, and provides a point type photoelectric smoke detector convenient to install, which comprises a fire detection alarm, a machine body and a detection shell, the detection shell is fixedly connected to the top of the machine body, the circumferential surface of the detection shell is provided with a smoke inlet groove, the top of the machine body is provided with an alarm lamp, and the smoke inlet groove is provided with a smoke outlet. And the inner wall of the machine body is fixedly connected with a filter plate. According to the technical scheme, the problem of a fire detection alarm in the prior art is solved, the contact block, the fixing rod, the reset spring, the handle and other assemblies are driven to be matched through the extrusion force of the extrusion block, the handle is pulled, so that the fixing rod penetrating the side face of the fixing block in a sliding mode slides, and the contact block fixed to one end of the fixing rod is driven to move; therefore, the top of the contact block does not make contact with the bottom of the extrusion block any more, then a worker pulls a connecting plate arranged at the bottom of the machine body, and the worker more easily conducts disassembly after use.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detection alarms, and in particular to a point-type photoelectric smoke detector which is easy to install. Background Art

[0002] Point-type photoelectric smoke detectors are a common fire detection device used to detect smoke in the air and trigger fire alarm systems. They are commonly used in a variety of places such as commercial buildings, residential and industrial facilities. Point-type photoelectric smoke detectors use the principle of photoelectric sensing to detect smoke in the air. They contain a light source and a photoelectric sensor. When smoke enters the light beam, the light is scattered or absorbed, thereby changing the light signal received by the sensor. Good optical design can improve the detector's response speed and sensitivity to smoke, which involves factors such as selecting an appropriate light source, beam design, smoke scattering pattern, and photoelectric sensor sensitivity.

[0003] According to an electrical fire alarm (publication number: CN 220796002 U), it includes a shell base, a connecting shell is fitted on the outer side of the shell base, a buzzer is fixed on the inner side of the shell base, a temperature sensor is fixed on the bottom end of the shell base, a battery and a control board are respectively fixed on the inner side of the shell base, and an installation component is arranged on the outer side of the shell base and on the outer side of the connecting shell. However, in the above design, disassembly after use is cumbersome and needs to be improved. Utility Model Content

[0004] The utility model provides a point-type photoelectric smoke detector which is easy to install, and solves the problem of a point-type photoelectric smoke detector which is easy to install in the related art.

[0005] The technical solution of the utility model is as follows: a point-type photoelectric smoke detector that is easy to install, comprises a body and a detection shell, the detection shell is fixedly connected to the top of the body, a smoke inlet groove is provided on the circumferential surface of the detection shell, an alarm light is provided on the top of the body, a filter plate is fixedly connected to the inner wall of the body, a main board is fixedly connected to the bottom of the filter plate, a battery is provided at the bottom of the main board, a connecting plate is provided at the bottom of the body, and a device that is easy to disassemble is provided on the circumferential surface of the body, the device that is easy to disassemble comprises a fixed block, the fixed block is fixedly connected to the circumferential surface of the body, a groove is provided at the bottom of the fixed block, an extrusion block is slidably connected to the inner wall of the groove, a connecting rod is fixedly connected to the bottom of the extrusion block, a fixed rod is slidably penetrated by the side of the fixed block, one end of the fixed rod is fixedly connected to a contact block, a reset spring is fixedly connected to the side of the contact block, and an end of the reset spring away from the contact block is fixedly connected to the inner side wall of the groove.

[0006] According to the above technical solution, a handle is fixedly connected to one end of the fixing rod away from the contact block, and an alarm is provided at the bottom of the main board. The design of the handle is conducive to the staff pulling the handle to move the fixing rod when disassembly is required, thereby facilitating disassembly.

[0007] According to the above technical solution, one end of the connecting rod away from the extrusion block is fixedly connected to the top of the connecting plate, and the contact block is located on the movement trajectory of the extrusion block. The design of the contact block is conducive to making the bottom of the extrusion block contact with the top of the contact block when the extrusion block squeezes the contact block, thereby limiting the extrusion block.

[0008] According to the above technical solution, a smoke exhaust device is provided inside the body, and the smoke exhaust device includes a ventilation hole, and the ventilation hole is opened on the circumferential surface of the body. The inner wall of the ventilation hole is connected to a connecting pipe, and a ventilation groove is opened at one end of the connecting pipe. The above design is conducive to the smoke entering the body and being discharged from the interior of the body through the ventilation groove opened at one end of the connecting pipe.

[0009] According to the above technical solution, a fan is provided on the inner wall of the connecting pipe, and the design of the fan is conducive to allowing smoke to be discharged from the interior of the machine body through the ventilation slots more quickly.

[0010] According to the above technical solution, two connecting pipes are provided and are symmetrical to each other along the center point of the bottom of the connecting plate. The design of two connecting pipes is conducive to better smoke exhaust work.

[0011] According to the above technical solution, the side section of the contact block is trapezoidal, the connecting plate contacts the bottom of the body, and the side section of the contact block is set to two, which is beneficial for better squeezing the contact block when the extrusion block contacts the contact block.

[0012] The working principle and beneficial effects of the utility model are:

[0013] 1. In the utility model, the extrusion force of the extrusion block drives the contact block, the fixed rod, the return spring, the handle and other components to cooperate with each other, so that the fixed rod sliding through the side of the fixed block can be pulled to slide, and the contact block fixed at one end of the fixed rod can be driven to move, so that the top of the contact block no longer contacts the bottom of the extrusion block. Then the staff pulls the connecting plate arranged at the bottom of the body, which makes it easier for the staff to disassemble after use.

[0014] 2. In the utility model, the rotational force of the fan drives the ventilation holes, the connecting pipes and the ventilation slots to cooperate with each other, so that when the alarm is completed, the fan arranged on the inner wall of the connecting pipe is started, so that the smoke is quickly discharged from the inside of the body through the ventilation slots opened at one end of the connecting pipe. When the alarm work is completed, the remaining smoke in the detector is quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal three-dimensional display of the body of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of a full cutaway portion of the fixing block of the utility model;

[0019] Figure 4 It is a three-dimensional display schematic diagram of the ventilation hole of the utility model;

[0020] Figure 5 For the utility model Figure 4 A is an enlarged three-dimensional schematic diagram.

[0021] In the figure: 1. Machine body; 2. Detection shell; 3. Smoke inlet slot; 4. Warning light; 5. Connecting plate; 6. Device for facilitating disassembly; 61. Fixing block; 62. Groove; 63. Extrusion block; 64. Connecting rod; 65. Fixing rod; 66. Contact block; 67. Reset spring; 68. Handle; 7. Smoke exhaust device; 71. Ventilation hole; 72. Connecting pipe; 73. Ventilation slot; 74. Fan; 8. Filter plate; 9. Main board; 10. Battery; 11. Alarm. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 to Figure 3As shown, this embodiment proposes a point-type photoelectric smoke detector that is easy to install, including a body 1 and a detection shell 2, the detection shell 2 is fixedly connected to the top of the body 1, the circumferential surface of the detection shell 2 is provided with a smoke inlet groove 3, the top of the body 1 is provided with an alarm light 4, the inner wall of the body 1 is fixedly connected with a filter plate 8, the bottom of the filter plate 8 is fixedly connected with a main board 9, the bottom of the main board 9 is provided with a battery 10, the bottom of the body 1 is provided with a connecting plate 5, and the circumferential surface of the body 1 is provided with a convenient disassembly device 6, and the convenient disassembly device 6 includes a fixed block 61, which is fixedly connected to the circumferential surface of the body 1, a groove 62 is provided at the bottom of the fixed block 61, an extrusion block 63 is slidably connected to the inner wall of the groove 62, a connecting rod 64 is fixedly connected to the bottom of the extrusion block 63, a fixed rod 65 is slidably penetrated through the side of the fixed block 61, one end of the fixed rod 65 is fixedly connected to a contact block 66, a return spring 67 is fixedly connected to the side of the contact block 66, and one end of the return spring 67 away from the contact block 66 is fixedly connected to the inner wall of the groove 62. A handle 68 is fixedly connected to one end of the fixed rod 65 away from the contact block 66, and an alarm 11 is provided at the bottom of the main board 9. One end of the connecting rod 64 away from the extrusion block 63 is fixedly connected to the top of the connecting plate 5, and the contact block 66 is located on the movement track of the extrusion block 63.

[0025] In this embodiment, when the detector needs to be disassembled, the staff member holds the handle 68 fixed at the other end of the fixing rod 65, pulls the handle 68 to slide the fixing rod 65 that slides through the side of the fixing block 61, and drives the contact block 66 fixed at one end of the fixing rod 65 to move, so that the top of the contact block 66 no longer contacts the bottom of the extrusion block 63, and then the staff member pulls the connecting plate 5 set at the bottom of the body 1, thereby driving the connecting rod 64 fixed at the top of the connecting plate 5 to move downward, and at the same time drives the extrusion block 63 fixed at one end of the connecting rod 64 to slide out, and the groove 66 opened at the bottom of the fixing block 61 is opened. 2, when installation is required, the staff pushes the connecting plate 5 upwards, driving the connecting rod 64 to move upwards, so that the extrusion block 63 contacts the contact block 66, and the extrusion block 63 is extruded along the inclined surface of the contact block 66, and at the same time, the fixing rod 65 moves horizontally and linearly, and at the same time, the reset spring 67 fixed on the side of the contact block 66 is squeezed, so that the reset spring 67 is in a tight state, and then when the bottom of the extrusion block 63 contacts the top of the contact block 66, the reset spring 67 is no longer subjected to the extrusion force, so it is reset, and at the same time, the fixing rod 65 is reset, so that the contact block 66 limits the extrusion block 63.

[0026] Example 2

[0027] like Figure 4-5As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a smoke exhaust device 7 is provided inside the body 1, and the smoke exhaust device 7 includes a ventilation hole 71. The ventilation hole 71 is opened on the circumferential surface of the body 1, and the inner wall of the ventilation hole 71 is connected with a connecting pipe 72. A ventilation groove 73 is opened at one end of the connecting pipe 72, and a fan 74 is provided on the inner wall of the connecting pipe 72. There are two connecting pipes 72, and they are symmetrical to each other along the center point of the bottom of the connecting plate 5. The side section of the contact block 66 is trapezoidal, and the connecting plate 5 is in contact with the bottom of the body 1.

[0028] In this embodiment, when the alarm is finally completed, the fan 74 arranged on the inner wall of the connecting pipe 72 is started, so that the smoke is quickly discharged from the interior of the body 1 through the ventilation slot 73 opened at one end of the connecting pipe 72.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A point-type photoelectric smoke detector that is easy to install, characterized in that: The invention comprises a body (1) and a detection shell (2), characterized in that: the detection shell (2) is fixedly connected to the top of the body (1), a smoke inlet groove (3) is provided on the circumferential surface of the detection shell (2), an alarm light (4) is provided on the top of the body (1), a filter plate (8) is fixedly connected to the inner wall of the body (1), a main board (9) is fixedly connected to the bottom of the filter plate (8), a battery (10) is provided at the bottom of the main board (9), a connecting plate (5) is provided at the bottom of the body (1), and a disassembly device (6) is provided on the circumferential surface of the body (1), and the disassembly device (6) comprises a fixing block ( 61), the fixed block (61) is fixedly connected to the circumferential surface of the body (1), the bottom of the fixed block (61) is provided with a groove (62), the inner wall of the groove (62) is slidably connected to an extrusion block (63), the bottom of the extrusion block (63) is fixedly connected to a connecting rod (64), a side surface of the fixed block (61) is slidably penetrated by a fixed rod (65), one end of the fixed rod (65) is fixedly connected to a contact block (66), the side surface of the contact block (66) is fixedly connected to a return spring (67), and the end of the return spring (67) away from the contact block (66) is fixedly connected to the inner wall of the groove (62).

2. The point-type photoelectric smoke detector that is easy to install according to claim 1, characterized in that: One end of the fixing rod (65) away from the contact block (66) is fixedly connected to a handle (68), and an alarm (11) is arranged at the bottom of the main board (9).

3. The point-type photoelectric smoke detector that is easy to install according to claim 2, characterized in that: One end of the connecting rod (64) away from the extrusion block (63) is fixedly connected to the top of the connecting plate (5), and the contact block (66) is located on the movement track of the extrusion block (63).

4. The point-type photoelectric smoke detector that is easy to install according to claim 3, characterized in that: A smoke exhaust device (7) is provided inside the body (1), and the smoke exhaust device (7) comprises a ventilation hole (71). The ventilation hole (71) is formed on the circumferential surface of the body (1), and the inner wall of the ventilation hole (71) is connected to a connecting pipe (72), and one end of the connecting pipe (72) is provided with a ventilation groove (73).

5. The point-type photoelectric smoke detector that is easy to install according to claim 4, characterized in that: A fan (74) is provided on the inner wall of the connecting pipe (72).

6. The point-type photoelectric smoke detector that is easy to install according to claim 5, characterized in that: Two connecting pipes (72) are provided and are symmetrical to each other along the center point of the bottom of the connecting plate (5).

7. The easy-to-install point-type photoelectric smoke detector according to claim 6, characterized in that: The side cross-section of the contact block (66) is trapezoidal, and the connecting plate (5) is in contact with the bottom of the machine body (1).

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